Home / 1,920,162.38-2,880,233.10-782,920.16

Finding the Fourth Proportional to 1,920,162.38, 2,880,233.10 and 782,920.16

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Solution

The fourth proportional to 1,920,162.38, 2,880,233.10 and 782,920.16 is: 1,174,375.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,162.38 : 2,880,233.10 = 782,920.16 : x
  2. Step 2: Convert to fraction form
    1,920,162.38/2,880,233.10 = 782,920.16/x
  3. Step 3: Cross multiply
    1,920,162.38x = 2,880,233.10 × 782,920.16
  4. Step 4: Simplify right side
    1,920,162.38x = 2,254,992,559,489.30
  5. Step 5: Solve for x
    x = 2,254,992,559,489.30/1,920,162.38
  6. Step 6: Final answer
    x = 1,174,375.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.